This file contains locations for antenna towers of approximately 1400 AM and FM public radio stations, using FCC data for location and NPR's station roster. It is similar to another NPR POI file on the site , but differentiates itself by locating the antennae towers as opposed to the city of the station’ location.. This file the product of three of us: User Bob Ball, usually from Michigan, momentarily from Arizona, extracted education and non-commercial station data from NPR and put coordinates into DD.DDDD format. User Bob Brown of Florida from his GIS background tweaked and verified through spot checks using GoogleEarth photos. User Maury Kahn in Texas used his Excel knowledge to merge station data with the NPR station roster into a file ready for upload. User Aardvark reviewed and updated all location data from the FCC database in May of 2010
The file includes stations with four-letter callsigns which repeat the programming from a main station. Users should understand that in the midst of a lot of file manipulation there may be errors, omissions and duplication.

Updated 6/15/2010 with complete review of lon/lat and station data from FCC database by Aardvark.
Updated 5/11/2008 to add additional NPR stations found by Stephen Bartels
Updated 8/11/2007 to correct errors in AM station locations found by Peter Dougherty. Since correcting the calculation formula, Peter has checked and verified several locations with a personal visit.